Handle an Adyen for Platforms periodic KYC data review request end-to-end, including the proactive-review trigger

Steps

1. Listen for a balancePlatform.accountHolder.updated webhook carrying verification error code 3_10 ("Review of data is required") with a remediatingActions entry pointing at /legalEntities/{id}/confirmDataReview
2. Optionally trigger the review proactively with POST /legalEntities/{id}/requestPeriodicReview while the user is active in your platform, instead of waiting for Adyen's own schedule
3. Prompt the user to review and, if needed, update their legal entity/UBO/signatory data before the verificationDeadlines cutoff in the webhook — capabilities remain allowed:true during this window
4. Once the user confirms, call POST /legalEntities/{id}/confirmDataReview and read the returned dataReviewedAt timestamp
5. Confirm resolution via another balancePlatform.accountHolder.updated webhook (or GET /accountHolders/{id}) showing verificationStatus valid before considering the review closed